/Engine/Plugins/Importers/AlembicImporter/Source/AlembicLibrary/Public/AbcFile.h
Process all to-import frames for each poly mesh inside of the ABC file
void ProcessFrames ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(int32, [FAbcFile](API\Plugins\AlembicLibrary\FAbcFile) *)> InCallback, const [EFrameReadFlags](API\Plugins\AlembicLibrary\EFrameReadFlags) InFlags )